Tube cross-reference
UU5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the UU5 rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for UU5
The following tubes are recorded as possible replacements for UU5. This direction does not establish that UU5 can replace them.
6BT4
American To ForeignRectifier - Full Wave
The database records 6BT4 as a possible replacement forUU5.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | Not recorded | OCTAL |
| Socket | Not recorded | IO |
| Base pins | Not recorded | 8 |
| Sections | 2 | 2 |
| Heater voltage | 4 V | 6.3 V |
| Heater current | 2.3 A | 0.6 A |
Verify before substituting
Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.
View the complete UU5 specifications →